I've gamed every other weekend for (ahem, over) a couple decades now, in multiple groups, as adulting amongst the players prevents more frequent gatherings. Typically 7 to 8 hour sessions, so marked Day and Night in my response. We're still playing during the pandemic, though have been using Roll20 to play online.
Also a few months back started a bi-weekly Tuesday evening game via Roll20. This is with some out-of-state friends who I used to game with regularly, so that's one good thing to come out of the pandemic. Plus got to introduce them to one of the players in my current group, and it's been a good fit.
For a follow up poll, I'd be curious how often people are gaming. Like I mentioned, both my current games are bi-weekly, but in college, it could be more than once a week.